Biology and ecology Deepwater stingray

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the kitefin shark known attack deepwater stingray.


the diet of deepwater stingray consists of cephalopods, crustaceans (including penaeid prawns, crabs, , lobsters), , bony fishes (including eels). long, flexible snout well-suited rooting through sediment, while presence of mesopelagic species in diet suggest may hunt above sea floor. 1 recorded individual found severely gouged kitefin sharks (dalatias licha), capable of excising plugs of flesh, cookiecutter-like, larger animals. deepwater stingray presumed similar other stingrays in being aplacental viviparous, , having developing embryos nourished maternally produced histotroph ( uterine milk ). given large size , deepwater habits, not highly prolific, small litter size , long gestation period. young apparently born @ close 50 cm (20 in) long, evidenced capture of free-living specimen of size still bore yolk sac scar. males , females mature sexually @ 1.3–1.7 m (4.3–5.6 ft) , 1.9–2.0 m (6.2–6.6 ft) long respectively. maximum size, , maturation size, varies between geographic regions.








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